#1B5BBB Color

#1B5BBB is rgb(27, 91, 187) in RGB and hsl(216, 75%, 42%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#1B5BBB

HEX#1B5BBB

RGBrgb(27, 91, 187)

HSLhsl(216, 75%, 42%)

HSVhsv(216, 86%, 73%)

OKLCHoklch(48.9% 0.165 259.1)

CMYKcmyk(86%, 51%, 0%, 27%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B5BBB background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text6.44:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text3.26:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #1B5BBB based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B5BBB Complementary#BB7B1B Analogous#1BABBB Analogous#2B1BBB Triadic#BB1B5B Triadic#5BBB1B

Tints & Shades

Lighter tints and darker shades of #1B5BBB, useful for hover states, backgrounds, and text variants.

Tints

#206CDF #4484E4 #679BE9 #8BB3EE #AFCAF4 #D2E2F9

Shades

#1850A5 #14438A #113874 #0D2B59 #0A2143 #061428

Use #1B5BBB in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex